/**
  ******************************************************************************
  * @file    stm32f4xx_ll_crc.h
  * @author  MCD Application Team
  * @brief   Header file of CRC LL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_LL_CRC_H
#define __STM32F4xx_LL_CRC_H

#ifdef __cplusplus
extern "C" {
#endif

    /* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

    /** @addtogroup STM32F4xx_LL_Driver
      * @{
      */

#if defined(CRC)

    /** @defgroup CRC_LL CRC
      * @{
      */

    /* Private types -------------------------------------------------------------*/
    /* Private variables ---------------------------------------------------------*/
    /* Private constants ---------------------------------------------------------*/
    /* Private macros ------------------------------------------------------------*/

    /* Exported types ------------------------------------------------------------*/
    /* Exported constants --------------------------------------------------------*/

    /* Exported macro ------------------------------------------------------------*/
    /** @defgroup CRC_LL_Exported_Macros CRC Exported Macros
      * @{
      */

    /** @defgroup CRC_LL_EM_WRITE_READ Common Write and read registers Macros
      * @{
      */

    /**
      * @brief  Write a value in CRC register
      * @param  __INSTANCE__ CRC Instance
      * @param  __REG__ Register to be written
      * @param  __VALUE__ Value to be written in the register
      * @retval None
      */
#define LL_CRC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))

    /**
      * @brief  Read a value in CRC register
      * @param  __INSTANCE__ CRC Instance
      * @param  __REG__ Register to be read
      * @retval Register value
      */
#define LL_CRC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
    /**
      * @}
      */

    /**
      * @}
      */


    /* Exported functions --------------------------------------------------------*/
    /** @defgroup CRC_LL_Exported_Functions CRC Exported Functions
      * @{
      */

    /** @defgroup CRC_LL_EF_Configuration CRC Configuration functions
      * @{
      */

    /**
      * @brief  Reset the CRC calculation unit.
      * @rmtoll CR           RESET         LL_CRC_ResetCRCCalculationUnit
      * @param  CRCx CRC Instance
      * @retval None
      */
    __STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit(CRC_TypeDef *CRCx)
    {
        WRITE_REG(CRCx->CR, CRC_CR_RESET);
    }

    /**
      * @}
      */

    /** @defgroup CRC_LL_EF_Data_Management Data_Management
      * @{
      */

    /**
      * @brief  Write given 32-bit data to the CRC calculator
      * @rmtoll DR           DR            LL_CRC_FeedData32
      * @param  CRCx CRC Instance
      * @param  InData value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFFFFFF
      * @retval None
      */
    __STATIC_INLINE void LL_CRC_FeedData32(CRC_TypeDef *CRCx, uint32_t InData)
    {
        WRITE_REG(CRCx->DR, InData);
    }

    /**
      * @brief  Return current CRC calculation result. 32 bits value is returned.
      * @rmtoll DR           DR            LL_CRC_ReadData32
      * @param  CRCx CRC Instance
      * @retval Current CRC calculation result as stored in CRC_DR register (32 bits).
      */
    __STATIC_INLINE uint32_t LL_CRC_ReadData32(CRC_TypeDef *CRCx)
    {
        return (uint32_t)(READ_REG(CRCx->DR));
    }

    /**
      * @brief  Return data stored in the Independent Data(IDR) register.
      * @note   This register can be used as a temporary storage location for one byte.
      * @rmtoll IDR          IDR           LL_CRC_Read_IDR
      * @param  CRCx CRC Instance
      * @retval Value stored in CRC_IDR register (General-purpose 8-bit data register).
      */
    __STATIC_INLINE uint32_t LL_CRC_Read_IDR(CRC_TypeDef *CRCx)
    {
        return (uint32_t)(READ_REG(CRCx->IDR));
    }

    /**
      * @brief  Store data in the Independent Data(IDR) register.
      * @note   This register can be used as a temporary storage location for one byte.
      * @rmtoll IDR          IDR           LL_CRC_Write_IDR
      * @param  CRCx CRC Instance
      * @param  InData value to be stored in CRC_IDR register (8-bit) between between Min_Data=0 and Max_Data=0xFF
      * @retval None
      */
    __STATIC_INLINE void LL_CRC_Write_IDR(CRC_TypeDef *CRCx, uint32_t InData)
    {
        *((uint8_t __IO *)(&CRCx->IDR)) = (uint8_t) InData;
    }
    /**
      * @}
      */

#if defined(USE_FULL_LL_DRIVER)
    /** @defgroup CRC_LL_EF_Init Initialization and de-initialization functions
      * @{
      */

    ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx);

    /**
      * @}
      */
#endif /* USE_FULL_LL_DRIVER */

    /**
      * @}
      */

    /**
      * @}
      */

#endif /* defined(CRC) */

    /**
      * @}
      */

#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_LL_CRC_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
